Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-12-2023 22:33

General

  • Target

    05b33e9713614ba46a3f40e4e29005b7.exe

  • Size

    512KB

  • MD5

    05b33e9713614ba46a3f40e4e29005b7

  • SHA1

    d6071a39a23387ead5d59e6bb7588152214bd098

  • SHA256

    11b39b677e8fb7741394ad10920d20ee1212a37a3f8e9723caa2925bc09d0166

  • SHA512

    45223ed85af198993082420faad43f55ffdba7a4430ffeb8c44945fc6a285a9d36cfe3e85c542f014eaccc9ce6733247f4ac5c46169541f0a202b9c0ba8515ee

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4+:0+h9OY70z+warul3E4+

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05b33e9713614ba46a3f40e4e29005b7.exe
    "C:\Users\Admin\AppData\Local\Temp\05b33e9713614ba46a3f40e4e29005b7.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Users\Admin\AppData\Local\Temp\n3713\s3713.exe
      "C:\Users\Admin\AppData\Local\Temp\n3713\s3713.exe" a95f3d2c0b6641c0badf51d47ZRSXrl5azovyAiEimmJkJ4H+hpEwYEwzGLmR6EQYZSsgBqyFatD5eRGDQ4aKGpR1sIRoRLdHw2oQ4isaqCjioL4BSAfX+9x8/CgeBSxAPU0apu+D2pIynWo8QQJ81LCARWHohPeZ2D1fnb1+V1cYiUt /v "C:\Users\Admin\AppData\Local\Temp\05b33e9713614ba46a3f40e4e29005b7.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3713\s3713.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3713\s3713.exe

    Filesize

    136KB

    MD5

    1ae3cc710c0fbfb9f7b97c72c8400555

    SHA1

    b619c85b1fc444ac4ec64a5ed5b71000ee319999

    SHA256

    7e35d427a8c47a0a368509322c95b61b051a48773cab920f21778910f28f08e7

    SHA512

    d67aa8425ccfa776c23403b1d83ce9bf5da9a78610796c6f2d5796619ee3bd75ea4a741c926707ec30fd49ff162321317c73d8cbd89a822020ab69c75a89899f

  • memory/4624-35-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-38-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-29-0x00000000017D0000-0x00000000017E2000-memory.dmp

    Filesize

    72KB

  • memory/4624-32-0x000000001CD40000-0x000000001D20E000-memory.dmp

    Filesize

    4.8MB

  • memory/4624-33-0x000000001D210000-0x000000001D2AC000-memory.dmp

    Filesize

    624KB

  • memory/4624-34-0x000000001D350000-0x000000001D3B2000-memory.dmp

    Filesize

    392KB

  • memory/4624-12-0x00007FF960CB0000-0x00007FF961651000-memory.dmp

    Filesize

    9.6MB

  • memory/4624-36-0x000000001C1F0000-0x000000001C1F8000-memory.dmp

    Filesize

    32KB

  • memory/4624-37-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-13-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-39-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-40-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-41-0x0000000020F50000-0x000000002145E000-memory.dmp

    Filesize

    5.1MB

  • memory/4624-42-0x00000000219A0000-0x0000000021ADC000-memory.dmp

    Filesize

    1.2MB

  • memory/4624-43-0x00007FF960CB0000-0x00007FF961651000-memory.dmp

    Filesize

    9.6MB

  • memory/4624-44-0x0000000001800000-0x0000000001810000-memory.dmp

    Filesize

    64KB

  • memory/4624-46-0x00007FF960CB0000-0x00007FF961651000-memory.dmp

    Filesize

    9.6MB